- NAME
- SYNOPSIS
- DESCRIPTION
- BUGS
- RETURN VALUES
- COPYRIGHT

# NAME

X509_cmp_time - X509 time functions

# SYNOPSIS

     X509_cmp_time(const ASN1_TIME *asn1_time, time_t *cmp_time);

# DESCRIPTION

`X509_cmp_time()` compares the ASN1_TIME in asn1_time with the time in <cmp_time>.

asn1_time must satisfy the ASN1_TIME format mandated by RFC 5280, i.e., its format must be either YYMMDDHHMMSSZ or YYYYMMDDHHMMSSZ.

If cmp_time is NULL the current time is used.

# BUGS

Unlike many standard comparison functions, X509_cmp_time returns 0 on error.

# RETURN VALUES

`X509_cmp_time()` returns -1 if asn1_time is earlier than, or equal to, cmp_time, and 1 otherwise. It returns 0 on error.

# COPYRIGHT

Copyright 2017-2019 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the OpenSSL license (the ``License''). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at https://www.openssl.org/source/license.html.